1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

1948 f1 transmission/clutch "stuck"

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  #31  
Old 03-11-2017, 04:59 PM
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Ok..yea i had the thrust bearing backwards!! moving much better now..thanks.
Now..before I put this sucker back, is their something I'm missing?? Why is the front drive shaft yoke not snug up to the rear transmission bearing retainer/rear transmission mount? Why so much of the shaft spline showing..I'm afraid to force it or I might break off those needle pin bearing retainer ears?


 
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Old 03-11-2017, 05:18 PM
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Why is my front drive shaft yoke not snugged up to rear trans retainer bearing?
 
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Old 03-11-2017, 05:53 PM
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Ok so here is pic of my throw out bearing..is it still reversed?


 
  #34  
Old 03-11-2017, 06:00 PM
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I don't see how having the release bearing backwards would cause the problems with the fingers not moving. Did you pull the pressure plate and verify the disc is in correctly?

The yoke should slide onto the shaft until the yoke bottoms out on the speedo gear on the back of the trans. Hold the yoke next to the shaft and see if for some reason your shaft is longer than your yoke is deep. Look inside the splines on the yoke and see if they are clear all the way.
 
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Old 03-11-2017, 06:16 PM
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no stamped "this side this way..this side that way"??
 
  #36  
Old 03-12-2017, 10:35 AM
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The short side of the splined hub in the disc appears to be on the right on the pic. That side goes against the flywheel.
 
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Old 03-12-2017, 06:29 PM
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ok..so the throw out bearing was backwards..fixed that. Clutch lever moving fork and bearing smooth and freely..got the front rear end differential yoke to sit in the rear transmission bearing retainer nice and snug. The short end of the clutch disc spline hub is facing the flywheel..check..check..check..
HOWEVER..When I rotate the transmission clutch lever it doesn't appar to reach the PP fingers far enough to depress them..notice my pic as the transmission front bearing retainer do I have the term right?) doesn't seem to reach far enough onto the front trani spline because the clutch plate reaches too far back?? or the throw out bearing isn't reaching the PP fingers far enough to move/depress those fingers..
Sorry if I'm not explianing this right but perhaps my pic might help you see the issue.
Something is wrong here??
BTW Trani gears rotating just fine when the trani is not sitting in the flywheel spline


 
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Old 03-12-2017, 07:19 PM
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Did you drive the truck before you disassembled the clutch? I never saw if this combination used to work.

To turn the operating shaft enough to depress the clutch fingers will take a LOT of force.

What did you do to get the yoke all the way in?
 
  #39  
Old 03-13-2017, 07:41 AM
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stuck clutch

Yes I drove truck before disassemble clutch
I'll try moving the Tran forward today
​​​​​​​maybe that front differential yoke is quite forward enough? would that push the it further into clutch hub spline I wonder?
 
  #40  
Old 03-13-2017, 08:16 AM
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Ross is right, it takes a LOT of force to depress those fingers. You won't do it with the vice-grips on the ear. It will have to be assembled and rotated with the clutch.
 
  #41  
Old 03-13-2017, 09:28 AM
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It will take a lot of force with something like a 14-16 inch crescent wrench to disengage the clutch. I think that is about the length of the clutch pedal assembly. Remember how hard it is to push the clutch with that hooked up. The driveshaft yoke has nothing to do with the clutch hub spline.
 
  #42  
Old 03-13-2017, 08:32 PM
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So I cleaned the inside of the yoke and rear trani spline..greased it up and was able to snuggle the yoke onto the trani spline with relative ease.
So now I'm going to put the differential drive back on (BTW..turning the front differential yoke moves the trani gears pretty smoothly)..
Then I'll reassemble the clutch pedal to see if I can get those PP fingers to move a bit given some advice that moving them requires more than a crescent wrench on the clutch lever..Still not very happy with that space between my clutch disc and front trani bearing retainer,,if I'm saying this correctly..how is that throw out bearing work with the clutch disc..shouldn't the disc be up against the flywheel when clutch pedal is up??
 
  #43  
Old 03-13-2017, 09:10 PM
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".shouldn't the disc be up against the flywheel when clutch pedal is up??"

yes - when you bolt the pressure plate to the flywheel, the clutch disk is pushed tight between the pp and flywheel.

Pushing the clutch pedal pushes the fingers forward and releases the pressure on the clutch disk...
 
  #44  
Old 03-13-2017, 09:57 PM
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I think you're calling the driveshaft a differential? The driveshaft has u-joints at the trans and at the rear axle end.

The gap between the disc's hub and the bearing retainer is necessary and normal, see drawing below from the Workshop Manual.


 
  #45  
Old 03-14-2017, 06:14 PM
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You're exactly right..I'm calling the differential the drive shaft..opps!
So what I'm making of your drawing then is the transmission front bearing retainer that the throw out bearing slides back and forth from looks to be approximately 1 inch distance from the clutch disc hub..and that's normal?
 


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